Blackhawk Airfield Airport (Madison, WI) 87Y 备注
| A58-22 | 45 ft trees 160 ft from threshold, 25L. |
| A58-09 | 40 ft trees 180 ft from threshold, 100 ft L. |
| A58-04 | 20 ft brush 10 ft from threshold. |
| A57-27 | Approach ratio 20:1 to dthr. |
| A57-22 | Approach ratio 10:1 to dthr. 48 ft trees 470 ft from dthr, 25 ft L. |
| A42-27 | Markings faded. |
| A42-22 | Markings faded. |
| A42-09 | Markings faded. |
| A42-04 | Markings faded. |
| A40-09/27 | Non-standard lirl; runway lights 2 ft to 3 ft above runway and non-standard spacing. Runway 09/27 lighted 1973 ft. |
| A33-04/22 | Cracks with vegetation. |
| A15 | Email address: STRASS32@AMERITECH.net (all lower case) |
| A110-6 | Cold temperature airport. Altitude correction required at or below -24C. |
| A110-5 | For clearance contact madison app/departure control at 608-249-8240. When madison approach closed, for clearance contact chicago artcc at 630-906-8921. |
| A110-4 | Runway ends obstd visually from otrs. |
| A110-3 | Deer and turkeys on and in vicinity of airport. |
| A110-1 | Runway 09 avoid overflight of farm 3/4 mi east. |
